Water-closet bowl.



WIT SSES C. H. MUCKENHIRN.

WATER CLOSET BOWL.

APPLICATION FILLD JULY 11, 1910.

Patented Mar. 16, 1915.

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', ter rises in the gradually diminishes as the action continues;

'cessive flow will be great UNITED srrA'rEs PATENT. OFFICE.

MENTS, TO THE STANDARD SANITARY MANUFACTURING COMPANY, OF PITTS- BURGH, PENNSYLVANIA, A CORPORATIO N 01? NEW JERSEY.

WATER-CLOSET BOWL.

Specification of Letters Patent.

To all whom it may concern? ,Hnzrna citizen of the United States, residin at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in \Vater-Closet Bowls, and declare the followin to be a full, clear, and exact description 0 the same, such as will enable others skilled in the art to which it.pertains tomake and use the same, reference being had to the accompanying drawings, which form a part of this specification. This invention relates to water closet bowls, and has for its object an improved bowl providedwith' a discharge conduit by means of which the contents of the bowl are discharged rapidly, certainly, quietly, without break in siphon action after the siphon action has been once started, and without return flow.

The invention is equally applicable to the jet siphon or to the form in which the starting action is accomplished by raising the head of Water without the jet. In either form, at the beginning of the action the washort leg with a force that and at the beginning of the action the water rising through the short leg rises in greater quantity than at a later period and the quantity gradually diminishes. In order that the siphon action may continue as long as possible the outlet from the long leg must be made as small as possible. In order that the siphon action may be constant without back flow provision must be made below the dam to either carry ofi or store all water that flows over the dam during the period of high rate flowf Moreover, if the jet force be added to the regular siphon action this exduring the first part of the action at the very'time when a return bowl those parts of its contents which it is especially desirable to remove; and after a return flow has taken place there is a liability that such contents will not wash out at all during the present period of siphon action. Furthermore, it is extremely desirable that the passage should be no where smaller than it is at the opening into-the short or up leg, and therefore the results must be accomplished without drawing in a of parts is flow will be liable to return to the the walls or using the constricting m that diminish the cross-sectional area of the outlet. The outlet in the bowl which embodies my invention is increased in cross sectional area immediately below the dam, and there is here provided a chamber which will receive and store such excess of water as cannot immediately run away, and below this chamber I employ means which partiallyoneutralize the acceleration due to the action of gravity; structing the conduit walls'as to stop the water, or form .eddy'curren-ts therein an thus form just belowthe enlarged part of the conduit a water plug that holds the air out from the chamber while the water in the chamber is itself constantly sinking and thus the plug extends upward to the spillway of the dam. The exact proportioning determined from a consideration of the size of the inlet, the height or head'in the bowl, the distance below this of the final outlet, the height of the tank, the size of ans .discharge from the tank into the cavit of the bowl, the size of discharge orifice o theaway, and so constructing the, final outlet 7 that it will hold back the water in this chamber and keep the chamber full enough to maintain the siphon action until the bowl and the tank are properly discharged. The result is accomplished by the bowl shown and describedin the accompanying drawings, in which Figure 1, shows a vertical longitudinal section with vertical outlet, called in trade a straight outlet. Fig. 2, is a horizontal section at line, a, a 0 Fig. 3.

The invention applied bowl is shown in Figs. 1, 2.

In the drawing I show a ascending leg 7 The body of the bowl is made in the ordinary form with the usual.

flushing rim and the ascending leg 7 of the this is done by so conto a siphon jet CHARLES H. MUCKENHIRN, OF DETROIT, MICHIGAN, ASSIGNOR, BY MESNE ASSIGN- Patented Mar. 16, 1915.

Application filed July 11, 1910. Serial No. 571,309.

dam of that quantity bowl with the discharge outlet which is round or substantially round in cross section. The descending leg 8 is curved forwardlyuntil the rear line of the discharge is under or substantially under the spillway of'the dam. 6; the enlarged chamber is reduced to the normal sized outlet 5 by an abrupt reduction. This curve and collar accomplish the result of overcomin the acceleration of the speed of the water ue to gravity and cause the water to form-la plugatithe bottom of the chamber which prev-ents'the introduction of air from below, but furnishes a chamber largeenough to receiveand retainthewa'ter during the period that its flow through the leg 7 .is above lthenormal siphon flow. If the jet be omitted the principle ofconstruction isthe same,but the capacityofthe chamber in the down leg need not be so reat, the principal ffeature ofthe invention eing the provision ofa chamber immediately belowthe dam of the siphon which has a capacity to receive all water which runs over the dam; co-acting with this chamber is some adequate meansfor so impeding the discharge from the chamber as to form a-constant plug'of water that continues in place so long as water is running over the dam into the chamber, that is, the chamber is to "empty only with the speed of the lowest speed of in'flow and the chambershall temporarily store excess water that enters because of a faster speed of inflow.

lVhat I claim is A closet bow; of the character'described, of integral formation having a rearwardly curved up leg, a down 'leg enlarged-throughcontacts and is deflected transversely o the ,5

leg whereby to ball up the water .atjtheoutlet and form a water plug.

In testimony whereof, I sign this specification in the presence of two witnesses.

CHARLES H. MUCKENHIRN.

Witnesses:

CHARLES F. BURTON, VIRGINIA C. SPRATT.

out its length and having a reversed curve, a 

